#12376F#12376F

#12376F is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.5% C 0.106 H 258.9°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#12376F
RGB	rgb(18, 55, 111)
HSL	hsl(216, 72%, 25%)
HSV	hsv(216, 84%, 44%)
CMYK	cmyk(83.8%, 50.5%, 0%, 56.5%)
CIE-LAB	lab(23.70, 9.55, -36.15)
CIE-LCH	lch(23.70, 37.39, 284.80°)
OKLab	oklab(34.52% -0.0204 -0.1039)
OKLCH	oklch(34.52% 0.106 258.9)
XYZ	xyz(4.4838, 4.0081, 15.5732)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12376F #6F4A12

analogous

#12656F #12376F #1B126F

triadic

#12376F #6F1237 #376F12

tetradic

#12376F #6F1265 #6F4A12 #126F1B

square

#12376F #6F1265 #6F4A12 #126F1B

split-complementary

#12376F #6F1B12 #656F12

monochromatic

#040D1A #091D3A #12376F #1B51A4 #236BD8

Accessibility & contrast

On white

11.66

#12376F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#12376F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12376F

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12376F	#FFFFFF	#000000	##FFFFFF
##12376F	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173D71

Deuteranopia (green-blind)

#00346E

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #12376f;
/* rgb */ color: rgb(18, 55, 111);
/* oklch */ color: oklch(34.5% 0.106 258.9);

Tailwind

colors: {
  custom: {
    50: '#616d99',
    500: '#12376f',
    950: '#000000',
  },
}

SCSS

$custom: #12376f;
$custom-light: #616d99;
$custom-dark: #000000;

JSON

{
  "hex": "#12376f",
  "rgb": {
    "r": 18,
    "g": 55,
    "b": 111
  },
  "hsl": {
    "h": 216.129,
    "s": 72.093,
    "l": 25.294
  },
  "oklch": {
    "l": 0.3452,
    "c": 0.1059,
    "h": 258.9
  },
  "luminance": 0.04009
}

Semantic roles & 50–950 ramp

primary

#12376F

secondary

#A67A37

accent

#A639EF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #12376F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →